mercedes fuel injector problems
have a fault or have a hole or be damaged. Add your complaint here, about any vehicle. Hi dear, my name is Jeffery Ekweghi, and I am a certified mechanic and autobody parts technician. They do this by spraying small amounts of fuel directly into the combustion chamber, allowing for a more efficient burn of the gasoline. over the injectors functions and makes sure the exact quantity of fuel gets to If you dont, it could lead to further damage throughout the fuel system and engine, leading to further extensive repair costs. You may also notice a vibrating engine or bad fuel odor at idle. Fuel injectors are now used in pretty much all passenger vehicles. riving a car hard combined with short start stop journeys will increase the wear and tear on injectors. So, if youre noticing problems including difficulty starting the engine, poor acceleration, decreased fuel economy, or black smoke coming from the exhaust pipe, then its likely that you need to have your fuel injectors serviced. Here, we take a look at some of the common signs and symptoms associated with a faulty fuel injector. Certified Automotive Diagnostic Technician. UK link - https://amzn.to/338zKebUSA link - https://amzn.to/3HMEh7xCutting compound / wax - I used this on the cutter when cutting the seatUK link - Rocol RTD: https://amzn.to/2IZZXnUUSA link - BruteLube stick / wax: https://amzn.to/3QijzC5Slide Hammer / Injector removal tool - This is the exact kit that I use in the video. By checking the fuel injector, youll be able to tell if theres been a leak because there will be fuel on or close to the injector. Sometimes, it all depends on the type of damage to the injector, its age and if it has been well maintained. This test applies to Mercedes-Benz vehicles equipped with 4-cylinder, V6, V8 and V12 gasoline engines such as M112, M113, M119, M104M272 and M273. Mercedes-Benz cars use an electric fuel pumpto pump the fuel to the fuel injectors. Check Engine Light One of the most obvious symptoms is that the check engine light on your dashboard is blinking. Regardless, its important to have the problem diagnosed and repaired as soon as possible to avoid further damage to your engine. the injector. Here is a more detailed list of the signs of a bad or clogged fuel injector to be on the lookout for: One of the most obvious symptoms is that the check engine light on your dashboard is blinking. This problem makes the motor feel as though it is sputtering sending vibrations through the car. When an injector isnt delivering fuel as it should, this interferes with the fuel-air mix in the combustion chamber. inspect the injectors with a flashlight for fuel leaks. By regularly inspecting these parts for signs of wear and tear, you can help reduce the risk of fuel injector failure in Mercedes vehicles. line from the fuel rail to remove the rail. Scores of people are returning their cars after countless injector failures. Take away the fuel rail from the This can help you avoid unnecessary trips to the repair shop, saving you both time and money. If you do find any signs of damage or wear and tear, it is best to get them replaced with Mercedes OEM parts as soon as possible to avoid any further damage. the injectors body. Heres a quick rundown of what can and cant be fixed: In general, fuel injectors are hard wearing and with a little care can often last the life of the engine. engine so check the Manufacturers manual to confirm. When you examine the injector visually you will If there is something wrong with one or more of your cars fuel injectors, then it wont run properly, or may not run at all. Fuel injectors are often made of plastic and can crack, which causes an external leak on the fuel injector. The reason is that the injectors are joined to former ones. Replacing fuel injectors isnt common practice, and with the right servicing and upkeep, there should be no reason to have to do so. Now insert the key and turn it to see a small metal clip that looks like a staple pin, use a small flathead Or, maybe theres a delay after you press the accelerator pedal? Links to where you can buy a Mercedes fuel pump are provided below. This can cause difficulties in starting, power production, and performance delivery. Some common problems affect many Mercedes-Benz diesel models, including E350, ML350, GL350, R350, Sprinter, R320 CDI, and BlueTec models. Now that the set cover is off, then see update vid link above! Running low on fuel can damage or wear out your vehicles fuel injectors over time due to higher levels of air and stress being put on them when running near-empty tank levels. Required fields are marked *. This symptom occurs when the fuel injector is leaking or when the fuel injector does not close properly. A failing EHA valve can cause concerning and dangerous side effects that make your Mercedes difficult, if not impossible, to driveincluding serious engine problems. When it comes to engine health and performance, the type of oil you use really does matter. Or even be able to identify what the How Much Does It Cost To Replace An Alternator. Happen when you hit the gas pedal to the floor. CHECK IT OUT - https://youtu.be/7weS1vQ_1OICheck out more of my videos from my HOMEPAGE and please consider SUBSCRIBING https://www.youtube.com/channel/UCDh9ld83sqnlEe4OSGRUsIARecommended tools:Injector seat cutting tool - I used a 17mm flat reamer (Note: some use an angled reamer for this but the flat one worked for me with lasting results). towels to clean the fuel. Its an excellent investment for both DIY mechanics and professional technicians, as it can assist in diagnosing and resolving even the most complex automotive problems easily, saving you time and money on costly repairs. This doesnt really tell you anything, except that there is a problem with the engine. You should get around an 11-13 volt reading. the engine on time. HPFP failures aren't unheard of by any means. The regular wear and tear of your fuel injectors are influenced by a lot of factors. Quick, Protecting your cars engine starts with using the right type of oil. The most common sign of a bad fuel injector is the check engine warning light, which appears on the dashboard. What we have already tried unsuccessfully: *Replace fuel filter *Spark Plugs *Drain and refill gas (The gas tank was full of crap gas) *Check fuel flow *Jumper fuel pump relay Have any of you ever dealt with similar issues, or have advice? It is recommended that you empty the tank or have it near empty when you replace the fuel pump. Regarding the symptoms of injector complications on your Mercedes Benz Sprinter it is about the same as for a faulty injection pump. The most common cause of leaky injectors is the failure of the O-ring where the injector meets the fuel rail. However, it may be different for your Use the links below to navigate the guide. If your cars idle noise has changed and feels rougher, the fuel injectors may not be delivering fuel as they should. "A problem has been identified which is due the manufacture of a small number of faulty diesel fuel injectors by our supplier, which can affect 220 CDI and 250 CDI models of the C-Class and. your car has covered a lot of miles or if. By following these simple maintenance tips, you can help extend the life of your Mercedes fuel injectors and keep them in good working condition for years to come. that this can be difficult. Injectors were introduced as a replacement for the old carburettor system, since they let engines run with greater fuel efficiency and help to reduce emissions. Step 1: Turn the car on. A Mercedes fuel injector problem sure spells a lot of hassle for car owners. For example, a fault with an injector in cylinder one would give a code of P0201. To prevent any form of blockage, clean Mercedes recall letters will . A Mercedes fuel injector problem sure spells a lot of hassle for car owners. Do not start the car. This is because the injector is not delivering the proper amount of fuel to the engine, causing it to run rich. If the injector cant deliver the dose of fuel called for by the ECU, the fuel-air mix in the combustion chamber will be off, which can lead to misfiring or a sudden drop in acceleration. Its also worth outlining how catalytic, 5W-30 and 5W-40 are among the most common engine oil types. In most cases, the injectors may simply need to be cleaned or replaced. Although there are a few different reasons why a check engine light can switch on, it could be down to a fuel injector. I found that MB Dealer was charging 10 times more for the oil filter and 2.5 times for the fuel injectors than the price in Germany. Replace any faulty ones if necessary. While fuel pump failure isnt very common in MB cars, we have seen several Mercedes cars such as ML320, C-Class, and E-Class models have a fuel pump go bad as early as 120k miles. Even if it looks like there is only one bad injector, having the rest of them inspected and tested by a professional is a good idea. This can be caused by a bad fuel filter, which lets dirt pass to the fuel injector. Bad Fuel Injectors? Agony did not end there. This is because the injector is responsible for delivering fuel to the engine. Gettingthem looked at by a qualified injector specialist can save you money in the long term. use pliers to detach the electrical connector on each injector. Most of these problems occur due to This group could be useful if enough members joined who have had these problems: Your message could be interpreted as if this Delphi injector issue would concern all MB Blue Efficiency models which isn't the case. because they are not cleaned regularly. This causes any fuel left in the injector to evaporate, leaving behind hard deposits inside the injector. 14th February may be synonymous with a well-known annual event that is Valentines Day, but 2022 also marks the celebration of another significant milestone in automotive history as Redex, the fuel additives manufacturer, turns 100 years old. To prevent any damage to your car JavaScript is disabled. If fuel falls on hot engine parts, you may cause a fire. This issue may be coupled with an engine running noisier than usual or higher levels of emissions. They are easy enough to maintain. Therefore, if it develops any You will need to have the car ECU scanned for error codes to be absolutely sure that its an injector problem. The first failure was caused by number 4 injector failing fully open, which caused a horrendous misfire this happened while driving at 20mph. How the fuel injector works is that it sprays fuel into This is because the ECU is calling for more fuel from the injector but not receiving it in the combustion chamber. If you notice a fuel leak in your engine bay, you should replace it immediately. You should replace your fuel filter every 20,000 to 60,000 miles, moving towards the latter with newer vehicles. And, if you A smell of unburnt fuel from the engine bay can point to a leaky injector. First, lets look at the signs. They do not cost that much and you can read the fault code memory at home. Under such conditions, the fuel pump may draw excessive current and blow the fuel pump fuse. Next, you must find out how to remove the rear seat. If you perform a fuel pressure test and find out that the fuel pump is not generating fuel pressure, dont rush to the conclusion that the fuel pump is bad. This is occurring because fuel is not burning properly as the relate to the smooth performance of the vehicle. The Mercedes-Benz M276 is a series of 3.0-liter and 3.5-liter gasoline V6 engines with direct fuel injection system. Furthermore, you should be happy to finally, the worst-case scenario is to replace the bad fuel injectors which Seek the help of an auto mechanic when necessary. the engine cool down before shutting it off will increase the life span of the injectors. Normally before a bad fuel injector damage your car engine it would be given you so many signs and symptoms like the one we have discussed above. Theyprobably wont, or make much difference to a car that is running properly. This is because too much fuel or too little will be enough to increase the emissions, and the catalytic converter will not be able to do its job properly. The easiest way to pinpoint the faulty component is to read the fault codes using an advanced OBD-II diagnostic scanner. Fuel related . and when it drops to the regular idle RPM, turn the engine off. I then tried to restart it but it was "hydrolocked" (with fuel)needless to say my initial thoughts were this is going to be expensive. This could be a result of too much air entering it due to faulty fuel injectors. $227.00. With thousands of vehicles failing the MOT for emissions reasons, drivers need to do all they can to reduce the volume of harmful emissions their car is producing before their MOT and making sure the fuel injectors are clean and well-maintained plays a big part in this. There was a problem during manufacturing when particles may have been trapped between the fuel rails and injectors which can cause gas leaks. This also includes a fuel pump, fuel pressure regulator, various sensors and the engine ECU. The less fuel reaches the engine, the lower your fuel economy. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Some special workshops can do fuel injector cleaning for you. Engine stalling as a result of a failed injector normally occurs when the nozzles are badly blocked or when theres a fuel leak where the injector connects with the fuel lines. First off, if you're experiencing difficulty starting the engine, it could be due to a faulty fuel injector. Fuel related misfires can be caused from bad fuel. If you diagnose your MB fuel system and find that the fuel pump has failed, your only option is to replace it. A badly performing injector will affect the running of the engine. Home - Engine - Bad Fuel Injectors? Take a look at our video below to learn more about how fuel injectors work. This can be caused by a leaky injector causing the fuel pressure to drop in the fuel rail. Symptoms Of A Clogged Or Bad Fuel Injector, How To Program A Key Fob To A Car in 8 Simple Steps, New Brakes Squeaking? Possible Solutions to Your Mercedes Fuel Injector Problem. The opening and closing of the valve is operated by a solenoid. Typically problems related to the fuel pump and fuel pressure include: loss of power acceleration problems engine sputtering at high speed engine not starting engine stalling problems starting the car This is caused by the burning of hydrocarbons that are present in the fuel, flowing through the injector. injector is malfunctioning. I have set up a facebook group to document these failures whether it be a C or E class or any other class which is relatively new and the fuel injectors have failed. This is often due to them becoming clogged with debris, although some mechanical and electrical issues can also affect fuel injectors. fuel rail. If a problem is suspected or detected with one or more fuel injectors in your Mercedes vehicle, there are several steps that you should take to diagnose and fix the issue. Whats the next step in diagnosing a problem with the engine injectors? Through this website, he shares his knowledge and expertise with others, providing valuable insights and tips on how to keep your vehicle running smoothly. If the engine is not receiving enough fuel, it will start to vibrate as soon as it has completed a full cycle. will also benefit the rest of the engine too. Here are ways how you can ensure their proper operation to optimize the performance and life of your engine: The fuel filter should be checked periodically to ensure that there are no clogs or restrictions in the fuel line. But what happens when they become clogged or develop faults? Before replacing, ensure you have the right tool to remove the fuel pump. Fuel injectors are an essential part of your cars engine, delivering fuel at the right time to ensure clean and efficient combustion. misses a dose of fuel, it wont run smoothly and may suffer damage over time. Magnus is the owner and main author of Mechanicbase. A faulty injector delivers either too much or too little fuel to the engine than required and reduces the vehicles fuel consumption. A malfunctioning fuel injector can lead to an uneven distribution of air and fuel mixture, which results in a rough idling engine. Your email address will not be published. Another thing that could cause fuel smell is a bad The fuel pump does not provide the required fuel pressure to meet the engine demands. Be extremely careful during this test procedure. Much does it Cost to replace an Alternator at home am a certified mechanic and autobody parts.... An injector isnt delivering fuel as it has completed a full cycle not burning properly as the relate to floor... 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A solenoid does not close properly the faulty component is to replace an Alternator be. Journeys will increase the wear and tear of your cars idle noise has changed feels! An Alternator happened while driving at 20mph number 4 injector failing fully open, which causes an leak. The electrical connector on each injector oil you use really does matter long term pressure to in. Influenced by a solenoid, Toronto, Ontario, M5V 2H1, Canada to ones... Each injector air and fuel mixture, which lets dirt pass to the floor, allowing for a fuel! You should replace it the valve is operated by a bad fuel each injector you have the right of.
